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Unrated severityNVD Advisory· Published Jul 29, 2024· Updated Nov 3, 2025

io_uring: fix possible deadlock in io_register_iowq_max_workers()

CVE-2024-41080

Description

In the Linux kernel, the following vulnerability has been resolved:

io_uring: fix possible deadlock in io_register_iowq_max_workers()

The io_register_iowq_max_workers() function calls io_put_sq_data(), which acquires the sqd->lock without releasing the uring_lock. Similar to the commit 009ad9f0c6ee ("io_uring: drop ctx->uring_lock before acquiring sqd->lock"), this can lead to a potential deadlock situation.

To resolve this issue, the uring_lock is released before calling io_put_sq_data(), and then it is re-acquired after the function call.

This change ensures that the locks are acquired in the correct order, preventing the possibility of a deadlock.

Affected products

98

Patches

6
950ac86cff33
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
73254a297c2d
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
b571a367502c
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
fdacd09f2ddf
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
97ed7ff58de6
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
b17397a0a5c5
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit

Vulnerability mechanics

Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

6

News mentions

0

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